All right here is the deal I have GC in my 03 lancer ES with 33268 miles. I will be heading to Seattle the weekend, by the time I get back I will have over 10,000 miles on the oil. I am looking for some input,when I get back Should I change it and take a sample, change the filter and top it off and go another 5000. Or just put another 3000 on it the way it is. On a side note I went 15000 on my Amsoil changing filter and topping off every 5-6000. My report told me to shoot for 17000 on the next interval. So lets hear what you all have to say!